package net.xdclass.strategy;

import java.util.ArrayList;
import java.util.List;
import java.util.Random;

public class ShardingDBConfig {

    private static final List<String> dbPrefixList = new ArrayList<>();

    private static Random random = new Random();

    static {
        dbPrefixList.add("0");
        dbPrefixList.add("1");
        dbPrefixList.add("a");
    }

    /**
     * 获取随机前缀
     * @return
     * @param code
     */
    public static String getRandomDBPrefix(String code) {
        int hashCode = code.hashCode();
        int index = Math.abs(hashCode) % dbPrefixList.size();
        return dbPrefixList.get(index);
    }


}
